Pocahontas, AR -- U.S. city in Arkansas Population (2000): 6518 Housing Units (2000): 2924 Land area (2000): 7.352001 sq. miles (19.041595 sq. km) Water area (2000): 0.208222 sq. miles (0.539292 sq. km) Total area (2000): 7.560223 sq. miles (19.580887 sq. km) FIPS code: 56540 Located within: Arkansas (AR), FIPS 05 Location: 36.263560 N, 90.973349 W ZIP Codes (1990): 72455 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Pocahontas, AR Pocahontas